Brick-machine



(No Model.) J. P. MILLER. BRICK MAGHINE.

Patented May 5, 1891.

ATToRN EY'.

NITED STATES ENT I FFICEQ BRICK-MACHINE.

SPECIFICATION forming part of Letters Patent No. 451,714, dated May 5, 1891.

Application filed July 26, 1889. Renewed October 18, 1890. Serial No. 368,535. (No model.)

To all whom it may concern.-

Be it known that I, JOSEPH P. MILLER, a citizen of the United States, residing at Haddonfield, in the county of Camden and State of New Jersey, have invented a new and useful Improvement in Brick-Presses,which improvement is fully set forth in the following specification and accompanying drawings.

My invention relates to improvements in brick-presses; and it consists of novel gearing for operating the plunger, adapted to be adjusted to take up wear.

'The invention further consists of an improved construction of the side arms of a clamping-bar and the bearing-boxes therefor.

The invention further consists of the construction and arrangement hereinafter more fully set forth and claimed.

Figure 1 represents a perspective view of a brick-press, partly broken away, embodying my invention. Figs. 2, 3, 4, 5, 6, 7, and 8 represent views of detached parts thereof on enlarged scales.

Similar letters and numerals of reference indicate corresponding parts in the several figures.

Referring to the drawings, A designates a frame having a plunger B, and O designates a compressing chamber or mold, which features are well known in the art.

A leverD is pivotally mounted on the frame and constructed with a heel E, having trunnions'F extending through the sides of the said frame, and provided with removable steel bushings G, which are affixed thereto by screws 1. The heel E of said lever is also formed with a slot 2 and ears 3 to receive a wheel H, adapted to bear against the lower end of the plunger B. A curved sectional gear-head J is fitted close over the free end of the lever D, and has an arm J, formed with openings K for the passage therethrough of set-screws L, and bears on the top surface of the said lever. The openings K are elongated and larger than the screws L to permit of a longitudinal adjustment of the head J.

The lever D has a lug M in rear of the arm J of the head J in which is located an ad j u-s ting-screw N, adapted to bear against the rear edge of said arm J and force the same outward when adjusted.

A shaft P is mounted in suitable hearings in the frame at a desirable elevation and constructed with a lug 4 to engage a stop 5. A sectional gear Q is attached to the shaft and meshes with the teeth of the head J. To the one end of the said shaft is secured a crankrod R, by which the parts are operated.

The bar or head S of the mold or chamber 0. is formed with tapered openings 6 to receive the arms T, whose upper ends are screwthreaded and also tapered, as at 7, to fit in openings 6. By this means a nut to support the bottom of bar on the tapered ends of the arms is dispensed with and a strong and solid connection between, the parts is obtained. A set-nut 8 is mounted on the end of each of the arms and bears on the bar S, and over the said set-nut is situated a jam-nut 9. By this construction the arms'l are strengthened, and thereby made to resist, wear and breakage. The lower ends of the arms T are adj ustably connected to the heads 10 of the journal plates or yokes U. Said lower ends of the arms-are formed with upper and lower screw-threads 11 and 12, intersected by a plain surface 13, which passes through an opening in the head 10 of each plate or yoke U. The upper screwthreads 11 are adapted to receive jam-nuts 14, which bear against the tops of said heads 10, and the lower screw-threadsl2 have adjusting or set nuts 15 mounted thereon, and are accessible for manipulation by means of a slot 16, formed in the heads, and by this means the said arms are made adjustable. The lower parts of the plates or yokes U are constructed with slots whosebottom wallshave an integral feather or spline 18.

Two half-boxes V, with grooved sides 19 and semicircular faces 20, are removably located'in the openings l7, andthe grooves of the lower half-boxes fit over the feathers or splines 18. These boxes surround the steel bushings G on the trunnions F of the heel E of the lever D, and the capped ends 21 of said ,trunnions bear on the outer surfaces of the boxes, as shown in Fig. 1. \Vhen the trunnions, with theirbushings G, are in position in the lower half-boxes, the upper half-box is inserted in opening 17 over the bushings and held in adjustable connection therewith by a tapered key \V, passing through an opening 22 in the plates or yokes U, and which engage the top grooves in the said upper halfboxes, as shown in Figs. 1, 2, 3, and 4t.

To operate the machine shown in Fig. 1, the crank-rod R is raised to give a semi-rotation to gear Q, which will lower lever D and force the plunger B upward to compress the brick. The reverse movement of the rod R will allow the plunger to descend. The lower end of the plunger has continuous bearing on the wheel II, and friction and wear are thereby reduced. To limitthe rotation of the shaft P, the lug 4 thereof bears on the stop 5, and thereby a disengagement of the gear Q from teeth of the head J is prevented.

As shown in Fig. 6, the'construction of the head J is slightly modified. In this instance the teeth are formed in a concave line and engage the gear Q. When this construction is employed, the rod R is pressed downwardly to elevate the plunger. The shaft P may be located at any elevation desired; but when the construction shown in Fig. 6 is employed it will be situated lower than as shown in Fig. 1.

The improvements set forth, consisting of the bar S, with tapered holes to receive tapered ends of the arms T, having a lower plate or yoke with removable boxes held over a steel bushing, and the gearing as set forth, strengthen the machine in order to resist wear and provide for a more direct expenditure of the power applied to the bar R.

Having thus described my invention, what I claim as new, and desire to secure by Letters Patent, is

1. In a brick-press, compressing mechanism, combined with a lever having an adj ustable sectional gear, a shaft having a lug to engage a stop, a sectional gear on said shaft adapted to mesh with the aforesaid gear, and means for operating said shaft, substantially as described.

2. In a brick-press, the compressing mechanism, a bar having tapered holes in each end, side arms fitting in said bar, having tapered ends, and journal plates or yokes adjustably connected to the arms, all combined and arranged substantially as described.

3. In a brick-press, the compressing mechanism, combined with a bar having tapered holes in the ends thereof, side arms having the upper ends thereof tapered and mounted in the tapered holes of said bar, journal plates or yokes attached to the lower ends of said arms, and half-boxes removably mounted in sai d platesor yokes, substantially as d escribed.

4;. In a brick-press, the compressing mechanism comprising a plunger and chamber, a lever having a heel formed with trunnions, compressing-bars, side arms attached to said bars at their upper ends, journal plates or yokes adjustably secured to the lower ends of said bars, having slots therein whose walls are constructed with a feather or spline, grooved half-boxes removably mounted in said slot of the plates, and tapered key for holding said boxes intact with said plate, substantially as described.

5. In a brick-press, arms attached to a bar which engages the compressing-chamber, combined with journal-plates connected to the lower ends of said arms and having sectional journal-boxes removably held therein, substantially as described.

6. In a brick-machine, the arms T, supporting a bar S, combined with journal-plates adj ustably connected to the lower ends of said arms and adapted to hold said journalboXes, substantially as described.

7. The plates or yokes U, carried by arms and having openings therein whose walls are formed with feathers or splines, half-boxes with grooves, and a tapered key, all combined and arranged substantially as described.

8. In a brick-press, a frame with .a mold thereon, said mold having a head with tapering holes or openings therein, a plunger, an oscillating lever adapted to operate said plunger and having its journal-bearings in boxes fitted in a yoke, arms adj ustably fitted to said yoke and having tapering upper portions and threaded ends, said tapering portions being adapted to fit in the tapering openings in the said bar, and nuts on said threaded ends, said parts being combined substantially as described.

9. In a brick-press, alever with alug thereon, in combination with the sectional gear J, having the arm J, the latter having the enlarged openings K, the screws L in said openings, and the screw N, passing through said lug of the lever and bearing against the arm J, substantially as and for the purpose set forth.

JOSEPH P. MILLER.

Witnesses:

J OHN A. WIEDERsHEIM, L. JENNINGS.

TOC 

